<!DOCTYPE html>
<html lang="en">
<head>
    <title>First Jinja2 webpage</title>
</head>
<body>
    <ul id="navigation">
    {% for item in navigation %}
        <li><a href="{{ item}}">{{ item }}</a></li>
    {% endfor %}
    </ul>

    <h1>Hello world</h1>
    {{ a_variable }}

    {# a comment #}
</body>
</html>
